NOTE: Make sure to download the files (archives) below and read the instructions usually contained within them in order to successfully cheat in Killing Floor. Don't hesitate to contact us should you need any assistance with applying these cheats.

NOTE: These are the main Killing Floor cheats that are usually applied by pressing down the right key combination. Please find the instructions on how to use these cheats below.

Cheat Codes
At any time during play, hit the ` key to bring down the console. Type the following codes in and hit enter to get the desired effect.

god: Toggle god mode (Once for on, again for off)

Hints

NOTE: As their name suggests hints are not exactly Killing Floor cheats, and are usually just simple (but very useful) tips on how you can unlock secret level, features, find hidden areas and such. Hopefully these will make playing Killing Floor even more entertaining.

Steam Achievements
Complete each condition to get the allotted achievements.
3 Ring Circus: Win a Long Game on Abusement Park on Suicidal Difficulty.
A Bit Barmy: Win a Long Game on Bedlam on Normal Difficulty.
Alligator Farmer: Win a Long Game on Farm on Suicidal Difficulty.
And Back to School: Complete a Long Game on all 3 Summer 2009 maps (Bedlam, Foundry, Wyre) on Suicidal Difficulty.
Assistant Homicide: Kill 2 Circus Stalkers with a Melee weapon to the back in one wave.
Back to Work: Kill 20 Christmas Clots in one wave.
Bad Santa: Unlock 10 of the 13 Christmas Achievements along with any Christmas Map achievement.
Bear King of the Dark Forest: Win a Long Game on Wyre on Suicidal Difficulty.Bitter Irony: Kill 2 Scrakes with a Chainsaw in a Single Wave.
Blooper Reel: Turn 500 Zeds into Giblets using the M79.
Boss from Hell: Win a Long Game on Offices on Hell on Earth Difficulty.
Burning up the Midway: Kill 10 Circus Clots with a Fire-based weapon.
Burst Pipe: Win a Long Game on Waterworks on Hard Difficulty.
Can't Catch Me!: Kill 2 Christmas Gorefasts with a Melee weapon from behind in one wave.
Careful Spender: Kill 4 Specimens with a Single Shot from a Hunting Shotgun.
Cattle Farmer: Win a Long Game on Farm on Hard Difficulty.
Chicken Farmer: Win a Long Game on Farm on Normal Difficulty.
Clearing Clown Alley: Kill 5 Circus Bloats in one game.
Comet: Win a Long Game on Icebreaker on Hell on Earth Difficulty.
Commit-ed for life: Win a Long Game on Bedlam on Hell on Earth Difficulty.
Complete Barking: Win a Long Game on Bedlam on Suicidal Difficulty.
Cracked the Nutcracker!: Land the killing blow on a Christmas Fleshpound with a Knife.
Crushed Ice: Win a Long Game on Icebreaker on Hard Difficulty.
Daytrip: Win a Long Game on Mountain Pass on Normal Difficulty.
Dear Departed: Win a Long Game on Departed on Hell on Earth Difficulty.
Death To The Mad Scientist: Defeat the Patriarch on Suicidal.
Deck the Halls with Buckets o' Blood: Kill 3 Christmas Zeds in 1 ZED time chain with a Melee weapon.
Demon Farmer: Win a Long Game on Farm on Hell on Earth Difficulty.
Demonic King of the Manor: Win a Long Game on Manor on Hell on Earth Difficulty.
Departure Gallery: Win a Long Game on Departed on Normal Difficulty.
Departure Gate: Win a Long Game on Departed on Suicidal Difficulty.
Departure Lounge: Win a Long Game on Departed on Hard Difficulty.
Devil Cake: Complete all new map achievements on Hell On Earth Difficulty.
Diablo Steel Man: Win a Long Game on Foundry on Hell on Earth Difficulty.
Dignity for the Dead: Kill 10 Specimens Feeding on Dead Teammates Corpses.
Dog and Pony Show: Win a Long Game on Abusement Park on Hard Difficulty.
Dot of Doom: Get 25 headshots in a row with the EBR while using the Laser Sight.
Duke of the Manor: Win a Long Game on Manor on Hard Difficulty.
Eggnog Anyone?: Get covered in Christmas Bloat Bile and live for 10 seconds on Hard, Suicidal, or Hell on Earth.
Elephant Gun: Land the killing blow on a Circus Fleshpound with a Pistol.
Emperor of the Manor: Win a Long Game on Manor on Suicidal Difficulty.
Experimenticenticide: Kill 100 Specimens.
Experimentilottacide: Kill 10,000 Specimens.
Experimentimillicide: Kill 1,000 Specimens.
Explosive Personality: As Demolitions, kill 1000 Specimens with the Pipebomb.
Fascist Dietitian: Kill 200 Bloats.
Fending off Mrs. Claws: Kill 3 Christmas Stalkers with a Lever Action Rifle without reloading.
Flaming Hell, That Was Close: As Firebug, kill the Husk with the Flamethrower before he hurts anyone.
Flea Circus: Win a Long Game on Abusement Park on Normal Difficulty.
Floodgate to Hell: Win a Long Game on Waterworks on Hell on Earth Difficulty.
Fruit Cake: Complete all new map achievements on Suicidal Difficulty.
Getting Chunky: Obliterate 10 Zeds at once with the Pipe Bomb.
Gimme a Plaster!: Win a Long Game on Hospital Horrors on Normal Difficulty.
Golden Potato: Get into GLaDOS' core on Aperture.
Gone Camping: Win a Long Game on Mountain Pass on Hard Difficulty.
Gone Mental: Win a Long Game on Bedlam on Hard Difficulty.
Grandma got Eaten by a Reindeer: Win a Long Game on Santa's Evil Lair on Hell on Earth Difficulty.
Hard Boss: Win a Long Game on Offices on Hard Difficulty.
Hard Pub Crawl: Win a Long Game on West London on Hard Difficulty.
Healing Touch: Heal 200 teammates with the MP7's medication dart.
Hellish Pub Crawl: Win a Long Game on West London on Hell on Earth Difficulty.
Homer's Heroes: Kill 100 Sirens.
Hot Cross Fun: Kill 25 Burning Specimens with a Crossbow.
I Like To Watch: Aquire 5 Minutes of "Zed-Time".
I'm Dreaming of a Red Christmas: Win a Long Game on Santa's Evil Lair on Suicidal Difficulty.
I'm Dying Here!: Win a Long Game on Hospital Horrors on Suicidal Difficulty.
I'm Making a Note Here, Huge Success: Win a Long Game on Aperture on Hell on Earth Difficulty.
Ice Cube: Win a Long Game on Icebreaker on Normal Difficulty.
Iceberg: Win a Long Game on Icebreaker on Suicidal Difficulty.
It's Not Easy Being Greasy: Cause a Specimen to Die by Luring them into Bloat Acid.
It's What's Inside That Counts: Turn 500 Specimens into Giblets.
Juggling Act: Drop 5 different Tier 2 weapons in one wave.
Keep Those Sneakers Off the Floor!: Kill 20 Stalkers with Explosives.
Killer Junior: Kill 20 crawlers in mid-air with the M79.
Lab Assistant: Win a Long Game on Biotics Lab on Hard Difficulty.
Lab Cleaner: Win a Long Game on Biotics Lab on Normal Difficulty.
Lab Professor: Win a Long Game on Biotics Lab on Suicidal Difficulty.
Let Them Burn: Get 1000 points of burn damage with the MAC-10.
Lifting a Dumbell: Kill a Circus Husk with a LAW.
Long, Hot Summer: Complete a Long Game on all 3 Summer 2009 maps (Bedlam, Foundry, Wyre) on Normal Difficulty.
Lord of the Manor: Win a Long Game on Manor on Normal Difficulty.
Mad Boss: Win a Long Game on Offices on Suicidal Difficulty.
Man of Steel: Win a Long Game on Foundry on Suicidal Difficulty.
Master Surgeon: As a Medic, Kill 8 Specimens using a Knife in a Single Wave.
Merry Friggin Christmas: Kill the Christmas Patriarch.
Merry Men: Kill the Patriarch when everyone is ONLY using Crossbows.
Missed Connection: Win a Long Game on Filth's Cross on Hard Difficulty.
Mountaineer: Win a Long Game on Mountain Pass on Suicidal Difficulty.
Mr. Perky: Get All of your Perks up to Level 5.
Neighborhood Watch: Win a Long Game on Suburbia on Normal Difficulty.
Not Dead Yet!: Win a Long Game on Hospital Horrors on Hell on Earth Difficulty.
Not So Silent Night: Kill a Christmas Siren with an undetonated LAW rocket.
On Top of the Big Top: Win a Long Game on Abusement Park on Hell on Earth Difficulty.
Park Ranger: Win a Long Game on Mountain Pass on Hell on Earth Difficulty.
Philanthropist: Give 1,000 Pounds to Teammates who have 50% of Your Cash or Less.
Piece of Cake: Complete all new map achievements on Normal Difficulty.
Pile Up: Win a Long Game on Filth's Cross on Hell on Earth Difficulty.
Pound Cake: Complete all new map achievements on Hard Difficulty.
Pound This: Kill 100 Fleshpounds with the AA12.
Pressure Failure: Win a Long Game on Waterworks on Suicidal Difficulty.
Private Security: Win a Long Game on Suburbia on Hard Difficulty.
Pub Crawl: Win a Long Game on West London on Normal Difficulty.
Punk'd: Unlock 10 of the 13 Circus Achievements along with any Abusement Park achievement.
Quarter Pounder With Ease: Turn 5 Fleshpounds into Giblets.
Raccoon King of the Dark Forest: Win a Long Game on Wyre on Hard Difficulty.
Random Axe of Kindness: Kill 15 Specimens with a Fire Axe in a Single Wave.
Ringmaster: Kill the "Ring Leader"(Circus Patriarch)
Rudolph, the Bloody Nosed Reindeer: Kill a Christmas Crawler with a Crossbow.
Running Late: Win a Long Game on Filth's Cross on Normal Difficulty.
Scar'd: Kill 1000 Specimens with the SCAR.
Science Got Done: Win a Long Game on Aperture on Normal Difficulty.
Scientist from Hell: Win a Long Game on Biotics Lab on Hell on Earth Difficulty.
Seeing Double: Kill 5 Circus Crawlers with a Bullpup in one wave.
Self Medicator: In Co-op Mode, Use Syringe on Yourself 100 Times.
Silent Night, Evil Night: Win a Long Game on Santa's Evil Lair on Hard Difficulty.
Slight Drip: Win a Long Game on Waterworks on Normal Difficulty.
Small Hands: Kill 3 Circus Clots in a wave with the Lever Action Rifle.
Social Outburst: Kill 8 Specimens with One Grenade.
Sparing with a Master: Kill a Circus Gorefast with a Melee weapon.
Squirrel King of the Dark Forest: Win a Long Game on Wyre on Normal Difficulty.
Steel Worker: Win a Long Game on Foundry on Hard Difficulty.
Still Alive: Win a Long Game on Aperture on Hard Difficulty.
Straight Rush: Kill the Patriarch Before he has a Chance to Heal.
Suicidal Pub Crawl: Win a Long Game on West London on Suicidal Difficulty.
Summer of 2009: Complete a Long Game on all 3 Summer 2009 maps (Bedlam, Foundry, Wyre) on Hard Difficulty.
SWAT: Win a Long Game on Suburbia on Hell on Earth Difficulty.
Taking Down the Big Top: Kill 4 Circus Zeds in 1 ZED time chain with a Melee weapon.
That Bloody Well Hurts!: Win a Long Game on Hospital Horrors on Hard Difficulty.
That's not Santa!: Kill 3 Christmas Bloats with the Bullpup in one wave.
The Big Hunt: Kill a Circus Scrake with a Crossbow.
The Boss: Win a Long Game on Offices on Normal Difficulty.
The Completely Suicidal War: Complete a Long Game on all 5 Core Maps on Suicidal Difficulty.
The Hard War: Complete a Long Game on all 5 Core Maps on Hard Difficulty.
The L.A.W. That Broke The Camel's Back: Deliver the Killing Blow to the Patriarch with a L.A.W. Rocket.
The Long War: Complete a Long Game on all 5 Core Maps on Normal Difficulty.
Thin-Ice Pirouette: Complete 10 Waves when the Rest of your Team has Died.
This is a Triumph: Win a Long Game on Aperture on Suicidal Difficulty.
Tin Man: Win a Long Game on Foundry on Normal Difficulty.
Tis Better to Give than to Receive: Drop 3 Tier 3 weapons for others (with which they kill at least one Christmas Zed).
Toasted Jack Frost: Kill the Christmas Scrake with a Fire-based weapon.
Too Close For Comfort: Finish off a Fleshpound using a Melee Attack.
Train Wreck: Win a Long Game on Filth's Cross on Suicidal Difficulty.
Uber Tuber: Expensive but delicious! Brought to you by Dr. Dougley and Lord Ned.
Vigilante: Win a Long Game on Suburbia on Suicidal Difficulty.
Walking in A Winter Horror Land: Win a Long Game on Santa's Evil Lair on Normal Difficulty.
Warehouse Foreman: Win a Long Game on Crash on Suicidal Difficulty.
Warehouse Forklift Operator: Win a Long Game on Crash on Hard Difficulty.
Warehouse Janitor: Win a Long Game on Crash on Normal Difficulty.
Warehouse Manager: Win a Long Game on Crash on Hell on Earth Difficulty.
Waste Disposal: Win a Long Game on Biohazard on Normal Difficulty.
Waste Land: Win a Long Game on Biohazard on Hard Difficulty.
Waste of Space: Win a Long Game on Biohazard on Suicidal Difficulty.
Wasted: Win a Long Game on Biohazard on Hell on Earth Difficulty.
Who Brings a Gun to a Snow Ball Fight?: Kill a Christmas Husk with any Pistol.
Windjammer Enthusiast: Survive 10 seconds after being screamed at by at Circus Siren on Hard or above.
Wolf King of the Dark Forest: Win a Long Game on Wyre on Hell on Earth Difficulty.